As of 06:44 CDT

Weather in Harness, IL

51°Current weather

Harness, Sunday, 11 October, 06:44

Clear. Feels like 50°. High 80°, low 51°.

Pressure30.00 inHg
Wind4.6 mph SE
Humidity93%
Visibility6.2 mi
Dew point49°

Monthly outlook for Harness, IL: average high 66.4°, average low 48.2°. That is 1.6° above the climate normal for October. Precipitation is expected on 2 days (about 1.2 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 12 October (86.8°), the coolest 18 October (28.8°).

66.4°/48.2°
Average high / low
+1.6°
Above normal
2 / 5
Wet days / normal
1.2 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
11 October – 20 October67.3°64.6°+1.5°
21 October – 30 October64.8°61°+2.2°
31 October – 9 Novemberat normal56.5°—

October records over 66 years

89.4°7 October 2007All-time high
21.9°22 October 1976All-time low

Climate normals and records are computed from the nearest reference point — Broadwell (15 mi).

Mon, 1287° / 61°0Overcast
87 °Overcast

Harness, Monday, 12 October

Overcast. High 87°, low 61°.

Pressure29.88 inHg
Wind10.7 mph SW
Humidity50%
Visibility6.2 mi
Dew point61°
Tue, 1386° / 72°0Clear
86 °Clear

Harness, Tuesday, 13 October

Clear. High 86°, low 72°.

Pressure29.85 inHg
Wind8.3 mph W
Humidity55%
Visibility6.2 mi
Dew point65°
Wed, 1479° / 68°0Overcast
79 °Overcast

Harness, Wednesday, 14 October

Overcast. High 79°, low 68°.

Pressure30.03 inHg
Wind7.9 mph NE
Humidity63%
Visibility6.2 mi
Dew point64°
Thu, 1564° / 59°1.13Rain
64 °Rain

Harness, Thursday, 15 October

Rain. High 64°, low 59°.

Pressure30.09 inHg
Wind10.8 mph NE
Humidity90%
Visibility—
Dew point59°
Fri, 1660° / 45°0.01Light rain
60 °Light rain

Harness, Friday, 16 October

Light rain. High 60°, low 45°.

Pressure30.42 inHg
Wind17.9 mph N
Humidity46%
Visibility—
Dew point38°
Sat, 1743° / 31°0Partly cloudy
43 °Partly cloudy

Harness, Saturday, 17 October

Partly cloudy. High 43°, low 31°.

Pressure30.42 inHg
Wind20.6 mph NW
Humidity42%
Visibility—
Dew point18°
Sun, 1848° / 29°0Mostly clear
48 °Mostly clear

Harness, Sunday, 18 October

Mostly clear. High 48°, low 29°.

Pressure30.53 inHg
Wind7.5 mph S
Humidity33%
Visibility—
Dew point16°
Mon, 1960° / 37°0Overcast
60 °Overcast

Harness, Monday, 19 October

Overcast. High 60°, low 37°.

Pressure30.30 inHg
Wind15.8 mph SW
Humidity30%
Visibility—
Dew point23°
Tue, 2067° / 42°0Clear
67 °Clear

Harness, Tuesday, 20 October

Clear. High 67°, low 42°.

Pressure30.21 inHg
Wind13.5 mph SW
Humidity28%
Visibility—
Dew point28°
Wed, 2168° / 46°0Partly cloudy
68 °Partly cloudy

Harness, Wednesday, 21 October

Partly cloudy. High 68°, low 46°.

Pressure30.21 inHg
Wind13.8 mph SW
Humidity30%
Visibility—
Dew point32°
Thu, 2272° / 55°0Overcast
72 °Overcast

Harness, Thursday, 22 October

Overcast. High 72°, low 55°.

Pressure30.33 inHg
Wind7.8 mph S
Humidity59%
Visibility—
Dew point50°
Fri, 2371° / 49°0Partly cloudy
71 °Partly cloudy

Harness, Friday, 23 October

Partly cloudy. High 71°, low 49°.

Pressure30.27 inHg
Wind14.5 mph S
Humidity41%
Visibility—
Dew point42°
Sat, 2463° / 47°0.07Light rain
63 °Light rain

Harness, Saturday, 24 October

Light rain. High 63°, low 47°.

Pressure30.15 inHg
Wind18.1 mph NW
Humidity49%
Visibility—
Dew point41°
Sun, 2554° / 39°0Clear
54 °Clear

Harness, Sunday, 25 October

Clear. High 54°, low 39°.

Pressure30.39 inHg
Wind7.7 mph NW
Humidity42%
Visibility—
Dew point28°
Mon, 2660° / 41°0Clear
60 °Clear

Harness, Monday, 26 October

Clear. High 60°, low 41°.

Pressure30.09 inHg
Wind12.2 mph NW
Humidity44%
Visibility—
Dew point34°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2760° / 44°0.09Climate normal
60 °Climate normal

Harness, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high60°
Average low44°
Average precipitation0.09 in
Chance of precipitation32%
Record high77° (1984)
Record low31° (2001)
Wed, 2859° / 43°0.06Climate normal
59 °Climate normal

Harness, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high59°
Average low43°
Average precipitation0.06 in
Chance of precipitation18%
Record high76° (1999)
Record low27° (1976)
Thu, 2959° / 43°0.08Climate normal
59 °Climate normal

Harness, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high59°
Average low43°
Average precipitation0.08 in
Chance of precipitation27%
Record high79° (1971)
Record low25° (1980)
Fri, 3061° / 45°0.12Climate normal
61 °Climate normal

Harness, Friday, 30 October

Climate normal for this date — 60-year average.

Average high61°
Average low45°
Average precipitation0.12 in
Chance of precipitation30%
Record high80° (1971)
Record low25° (1980)
Sat, 3160° / 45°0.19Climate normal
60 °Climate normal

Harness, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high60°
Average low45°
Average precipitation0.19 in
Chance of precipitation42%
Record high77° (1968)
Record low28° (2019)
Sun, 0159° / 43°0.2Climate normal
59 °Climate normal

Harness, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high59°
Average low43°
Average precipitation0.2 in
Chance of precipitation35%
Record high79° (2016)
Record low25° (1993)
Mon, 0257° / 42°0.08Climate normal
57 °Climate normal

Harness, Monday, 2 November

Climate normal for this date — 60-year average.

Average high57°
Average low42°
Average precipitation0.08 in
Chance of precipitation28%
Record high77° (1961)
Record low25° (1996)
Tue, 0356° / 41°0.11Climate normal
56 °Climate normal

Harness, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high56°
Average low41°
Average precipitation0.11 in
Chance of precipitation30%
Record high77° (1987)
Record low18° (1991)
Wed, 0456° / 42°0.1Climate normal
56 °Climate normal

Harness, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high56°
Average low42°
Average precipitation0.1 in
Chance of precipitation25%
Record high76° (1978)
Record low16° (1991)
Thu, 0556° / 41°0.15Climate normal
56 °Climate normal

Harness, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high56°
Average low41°
Average precipitation0.15 in
Chance of precipitation30%
Record high77° (1978)
Record low19° (1991)
Fri, 0655° / 39°0.08Climate normal
55 °Climate normal

Harness, Friday, 6 November

Climate normal for this date — 60-year average.

Average high55°
Average low39°
Average precipitation0.08 in
Chance of precipitation32%
Record high71° (2020)
Record low25° (1982)
Sat, 0755° / 39°0.07Climate normal
55 °Climate normal

Harness, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high55°
Average low39°
Average precipitation0.07 in
Chance of precipitation22%
Record high71° (1966)
Record low18° (1991)
Sun, 0855° / 39°0.04Climate normal
55 °Climate normal

Harness, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high55°
Average low39°
Average precipitation0.04 in
Chance of precipitation15%
Record high76° (1999)
Record low11° (1991)
Mon, 0956° / 40°0.11Climate normal
56 °Climate normal

Harness, Monday, 9 November

Climate normal for this date — 60-year average.

Average high56°
Average low40°
Average precipitation0.11 in
Chance of precipitation33%
Record high74° (2020)
Record low15° (1991)

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Harness, IL are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Harness, IL since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.